Collins, Holden & Setchell, Phycoth. Bor.-Amer.
Collins, F.S.; Holden, I.; Setchell, W.A. [1-2300]

Brown University - Algae
Catalog #: ABRU00003337
H. T. A. Hus s.n.
Porphyra perforata J.Agardh
United States, California, Fort Point, San Francisco, CA

Field Museum of Natural History
Catalog #: C0503680F
H. T. A. Hus #s.n.
Porphyra perforata J.Agardh
United States, California, San Francisco, Fort Point, San Francisco

University of Michigan
Catalog #: 670696
H.T.A. Hus #s.n.
Pyropia perforata (J.Agardh) S.C.Lindstrom
United States, California, San Francisco, Fort Point, San Francisco

University of Michigan
Catalog #: 670717
H.T.A. Hus #s.n.
Pyropia perforata (J.Agardh) S.C.Lindstrom
United States, California, San Francisco, Fort Point, San Francisco

Michigan State University Algae
Catalog #: MSC0184362
H.T.A. Hus #s.n.
Porphyra perforata f. lanceolata Setchell & Hus
United States, California, San Francisco, Fort Point, San Francisco

Miami University - Algae
Catalog #: 000187286
H.T.A. Hus #s.n.
Porphyra perforata J.Agardh
United States, California, San Francisco, Fort Point, San Francisco

Yale University Herbarium
Catalog #: YU.091766
Henri Hus s.n.
Porphyra perforata J.Agardh
United States, California, San Francisco; Fort Point, San Francisco, CA